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Slightly simplify half-carry evaluation.

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Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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Adrian Conlon
2018-10-14 23:18:13 +01:00
parent 140e87485c
commit 4e48f4a5a0
1 changed files with 1 additions and 1 deletions
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2
MC6809/inc/mc6809.h
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@@ -222,7 +222,7 @@ namespace EightBit {
} }
void adjustHalfCarry(uint8_t before, uint8_t data, uint8_t after) { void adjustHalfCarry(uint8_t before, uint8_t data, uint8_t after) {
setFlag(CC(), HF, !!((before ^ data ^ after) & Bit4)); setFlag(CC(), HF, (before ^ data ^ after) & Bit4);
} }
void adjustAddition(uint8_t before, uint8_t data, register16_t after) { void adjustAddition(uint8_t before, uint8_t data, register16_t after) {